import javax.xml.namespace.QName;


public class Main {

    public static void main(String[] args) {
        Son son = new Son("son");
        System.out.println(son.mName);
        son.call();
        System.out.println(son.mName);
        Integer a = new Integer(5);
        Integer b = new Integer(5);
        boolean equal = equal(a, b);
        System.out.println(a.equals(b));
    }
    public static boolean equal(Object a, Object b) {
        return a == b || (a != null && a.equals(b));
    }

}
